Adjustable cultivator.



J. K. WEDGWORTH.

ADJUSTABLE GULTIVATOR.

APPLIGATION FILED rmm, 1912.

1,039,856.- Patented 0ct.1,1912.

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\ u wi/f wwoao lo -K-WGdSWOKth (q v 2 5 w I m v abromqo JOHN K.WEDGWORTH, 0F CUBA, ALABAMA.

ADJUSTABLE GULTIVATOR.

Specification of Letters Patent.

' Patented Oct. 1,1912.

Application filed. February 5, 1912. Serial No. 675,592.

To all whom it may concern:

Be it known that l, J OHN K. lVEDewoRTH, a citizen of the United States,residing at Cuba, in the county of Sumter and State of Alabama, haveinvented certain new and useful Improvements in Adjustable Cultivators;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements 1n adjustable cultivators.

One object of the invention is to provide a cultivator having animproved construction and arrangement of teeth and means whereby thesame may be quickly and easily adjusted to change the cultivator forright or left hand work or to change the same into a rake, said teethalso being adapted to be readily shifted to convert the device into adouble plow or cultivator.

Another object is to provide a cultivator of this character which willbe simple, strong, durable and inexpensive in construction, efficientand reliable in operation and well adapted to the purpose for which itis designed.

With these and other objects in view the invention consists of certainnovel features of construction and" the combination and arrangement ofparts as will be more-fully described and claimed.

In the accompanying drawings; Figure 1 is a side view of a cultivatorconstructed in accordance with my invention; Fig. 2 is a top plan viewthereof; Fig. 3 is a bottom plan view of the forward end of thecultivator, showing more clearly the manner in which the teeth of thecultivator are adjustably secured; and Fig. 4 is vertical crosssectional view on the line 14: of Fig. 1.

y frame consisting of a central longitudinally disposed bar or beam 1 tothe upper and lower sides of which at its rear end are bolted upper andlower teeth supporting bars 2 and 3 the ends of which are securedtogether by bolts 4; as shown.

To the forward end of the beam 1 is pivoted a circular tooth adjustingdisk 5 in which are formed series of radially disposed bolt holes 6, 7and 8 and in which near its forward edge is formed a series of boltholes 9. The series of bolt holes 6 and 7 are improved cultivatorcomprises aarranged in line with each other and with the center. orpivotal connection of the disk with the beam 1 and in said holes arearranged bolts 10 by means of which the for ward ends of the tooth-bars11 are pivotally connected to the disk 5. The bars 11 near their rearends are slidably engaged between the bars 2 and 3 of the frame and attheir rear ends are bent or curved downwardly and shaped to form teeth12. By

thus pivotally connecting the forward ends of the tooth bars with thedisk 5 it will be seen that by turning said disk in one direction or theother on the pivot-bolt 13 which pivotally connects the same with thebeam 1,the tooth bars and teeth on opposite sides of the beam will beadjusted to form either a right or left hand cultivator. When the disk 5has thus been turned to adjust the teeth to the desired positions thedisk is locked and the teeth thereby fastened in this position by afastening bolt 14: which is en gaged with one of the bolt holes 9 in theforward edge of the disk and in the forward end of the beam which isprovided with a bolt hole to receive said bolt. The bolt 14 when thusarranged also serves as a clevis bolt for attaching a clevis or otherdraft device 15. to the forward end of the beam.

The cultivator is provided with suitable handles 16 the forward ends ofwhich are brought together and secured by the beam 1 and disk 5 by thepivot bolt 13. The handles 16 are supported and secured to the crossbars 2 and 3 of the frame by supporting and bracing bars 17 the upperends of which are bolted to the handles and the lower ends of which arebent at right angles to form attaching lugs 18, said lugs having thereinbolt holes with which are engaged the bolts 4: in the outer ends of thebars 2 and 3.

By constructing my cultivator as herein shown and described it will beseen that in order to change the same to form either a right or lefthand cultivator it is simply necessary to remove the fastening bolt 14:in the outer end of the beam 1 and adjacent portion of the disk 5 and toturn said disk on the pivot bolt 13 in the desired direction and to asufficient extent to bring either of the other bolt holes 9 in the outeredge of the disk into register with the bolt holein the outer end of thebeam whereupon the fastening bolt 14 is again engaged with said boltholes, thus fastening the disk and holding the teeth in their adjustedpositions. In order to change the cultivator into a rake or harrow thedisk 5 is adjusted until the central hole 9 in the outer edge of thedisk is brought into alinement with the hole in the outer end of thebeam and to secure the disk in this position by the fastening bolt lt,thus holding the teeth in a straight line, in which position thecultivator may be employed as a rake or harrow. When the teeth are inthe position last described the two innerteeth may be disengaged fromthe inner bolt holes 6 and 7 and moved ahead and connected in bolt holes19 arranged in the disk slightly in advance of the inner bolt holes 6and 7 thus forming a double plow for covering purposes. When the disk isin the position just described the teeth on one side of the beam may bedisconnected from the bolt holes 7 in the disk and connected with theseries of bolt holes 8, thus forming a double side plow or cultivator bymeans of which both sides of a row of plants may be simultaneouslycultivated.

By constructing a cultivator in accordance with my invention it will beseen that the teeth thereof may be quickly and easily adjusted orchanged to different positions thus enabling the cultivator to beemployed for a number of different purposes so that the one implementwill take the place of a mum ber of implements usually required forperforming the same operations.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention as claimed.

Having thus described my invention, what I claim is;

1. In a cultivator, a supporting frame comprising a beam, a cross barsecured to the rear end of said beam, a tooth adjusting disk pivotallysecured to the forward end of said beam and having a series of radiallydisposed bolt holes, a plurality of tooth bars slidably engaged withsaid cross bar, teeth on said tooth bars, bolts in the radial bolt holesto pivotally connect the forward ends of said tooth bars therewith, andmeans to fasten said disk for holding the tooth bars in adjustedposition.

2. In a cultivator of the character described, a supporting framecomprising a beam, cross bars secured to the rear end of said beam, atooth adjusting disk pivotally secured to the forward end of said beam,said disk having therein series of radially disposed bolt holes, and aseries of fastening bolt holes, a plurality of tooth bars slidablyengaged with said cross bars, teeth arranged on the rear ends of saidtooth bars, bolts arranged in the radial bolt holes of said disk topivotally connect the forward ends of the tooth bars therewith, afastening bolt arranged in the forward end of said beam and adapted tobe engaged with one of the fastening bolt holes in said disk whereby thelatter is locked to hold the teeth in position when adjusted by theturning of said disk.

8. In a cultivator of the character described, a supporting framecomprising a beam, cross bars secured to the rear end of said beam, atooth adjusting disk pivotally secured to the forward end of said beam,said disk having therein series of radially disposed bolt holes, and aseries of fastening bolt holes, a plurality of tooth bars slidablyengaged with said cross bars, teeth arranged on the rear ends of saidtooth bars, bolts arranged in the radial bolt holes of said disk topivotally connect the forward ends of the tooth bars therewith, afastening bolt arranged in the forward end of said beam and adapted tobe engaged with one of the fastening bolt holes in said disk whereby thelatter is locked to hold the teeth in position when adjusted by theturning of said disk, a clevis secured to said beam by the fasteningbolt, handles connected at their forward ends to the beam, and bracebars connected to said cross bars whereby the handles are braced andsupported in operative position.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

J. K. WEDGlVORTH. Witnesses J. M. MoELRoY, A. K. TATE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

